clitoris:

The small organ of spongy, sensitive, erectile tissue, blood vessels, and nerves located above the entrance to the vagina . Beneath the skin , the clitoris forks into two shafts known as crus (singular: crura) which extend for about three incheson either side of the vaginal opening . During stimulation and foreplay , this spongy area fills with blood and the glans , shaft , and legs swell and become firm. Contrary to the penis , which serves both the functions of procreation and urination , the sole purpose of the clitoris is pleasure and to transmit sexual sensation. Etymology: Possibly from the Greek kleitoris meaning to close. See vagina for synonyms.

Quotes: Charles Panati, Sexy Origins and Intimate Things (1998): ' This has lead to the claim that men traditionally have been afraid of womens raw sexuality, that men secretly feel sexually inferior because women are better designed for eroticism and can have multiple-orgasms in rapid succession. Whatever the reason, male writers and physicians have, historically, largely ignored or misrepresented the role of the clitoris .'